What is a cone?

As the story goes, it was a long day at INDOC, the year was 1980 something. The instructors had just enough of the trainees that day. They were sucking at everything and couldn't get their acts together. In frustration the instructor yelled, "You are a bunch of dumb Coneheads!" Because if you remember the Coneheads from Saturday Night Live, they weren't the sharpest tools in the shed. They were in fact quite dumb. This term of endearment has evolved over the years and hence the monikers; cones, dirty cones, dirty scurvy cones, stones, scones and coniverse.